The 5-endo-trig-type cyclization has been performed using a Pd-bis(isoxazoline) catalyst. The present cyclization of beta,gamma-unsaturated carbonyl compounds gave gamma-butenolides and 3-pyrrolin-2-ones in good to excellent yields.
已经使用Pd-双(
异恶唑啉)催化剂进行了5-内-trig-型环化。β,γ-不饱和羰基化合物的当前环化以良好至优异的产率得到γ-
丁烯内酯和
3-吡咯啉-2-酮。